Longines Master Collection

The Longines Master Collection, reference L2.128.4.77.6, has a 25.5 mm round case in steel. The watch is set with diamonds. The case measures 8.9 mm thick and 30.5 mm lug-to-lug, with water resistance rated to 30 metres. Self-winding calibre L592.5 provides up to 45 hours of power reserve and is visible through a transparent case back. Polished silvered hands indicate the hours and minutes on the silver barleycorn dial. A steel bracelet closes with a triple safety folding clasp and a push-piece opening mechanism. The dial includes a date display and central seconds. A scratch-resistant sapphire crystal covers the dial.